Fatal error: Uncaught Error: Call to undefined function is_shop() in /mnt/web216/e1/70/54126370/htdocs/WordPress_01/wp-content/themes/crosby/functions.php:397
Stack trace:
#0 /mnt/web216/e1/70/54126370/htdocs/WordPress_01/wp-includes/class-wp-hook.php(310): misha_rand_order_with_seed()
#1 /mnt/web216/e1/70/54126370/htdocs/WordPress_01/wp-includes/plugin.php(256): WP_Hook->apply_filters()
#2 /mnt/web216/e1/70/54126370/htdocs/WordPress_01/wp-includes/class-wp-query.php(2848): apply_filters_ref_array()
#3 /mnt/web216/e1/70/54126370/htdocs/WordPress_01/wp-includes/class-wp-query.php(3749): WP_Query->get_posts()
#4 /mnt/web216/e1/70/54126370/htdocs/WordPress_01/wp-includes/class-wp.php(663): WP_Query->query()
#5 /mnt/web216/e1/70/54126370/htdocs/WordPress_01/wp-includes/class-wp.php(783): WP->query_posts()
#6 /mnt/web216/e1/70/54126370/htdocs/WordPress_01/wp-includes/functions.php(1332): WP->main()
#7 /mnt/web216/e1/70/54126370/htdocs/WordPress_01/wp-blog-header.php(16): wp()
#8 /mnt/web216/e1/70/54126370/htdocs/WordPress_01/index.php(17): require('...')
#9 {main}
  thrown in /mnt/web216/e1/70/54126370/htdocs/WordPress_01/wp-content/themes/crosby/functions.php on line 397